Adds a per-language "Manage cookies" link to the footer legal bar on all
201 pages, wired to window.msosOpenConsent() so visitors can change or
withdraw their choice at any time (GDPR requirement). Verified: decline ->
re-open via link -> accept flips analytics consent to granted.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>